Precision last holder

Abstract

The utility model discloses a kind of precise shoe tree racks, including main body frame and multiple layers of storage unit being fixed in the main body frame, each layer The storage unit includes multiple for suspending precise shoe tree's suspension bin;The suspension bin includes a pair of parallelly arranged suspension rods, the distance between a pair of The distance between the suspension rod and the distance between the top two sides of the precise shoe tree clamping groove are adapted, so that the precise shoe tree can be suspended between a pair of The suspension rod through the clamping groove is hung up.The utility model is through the setting special suspension bin, so that each precise shoe tree can be independently, isolatedly stored, completely change the stacking mode of prior art, to effectively avoid the scratch, wear or deformation of its key datum plane (top working surface and clamping groove) caused by collision and friction between shoe tree, provide basic guarantee for maintaining the long-term use precision of precise shoe tree.

Description

Technical Field

[0001] This utility model belongs to the technical field of automated shoe manufacturing equipment, specifically relating to a precision shoe last placement rack. Background Technology

[0002] As the footwear industry undergoes a profound transformation towards automation and intelligence, precision shoe lasts have become one of the core tooling components of automated production lines. In automated operations, precision shoe lasts need to be precisely positioned on specific tooling, with their top working surface tightly fitted to the tooling surface to ensure accurate positioning. Based on this, a robotic arm grasps and transfers the precision shoe last stably and accurately by gripping the clamping groove on its top, thus ensuring the processing accuracy of subsequent processes such as lasting, marking, and gluing. Therefore, the dimensional accuracy and surface integrity of the top working surface (positioning reference) and clamping groove (grabbing reference) of the precision shoe last directly determine the stability of the entire automated production process and the quality of the final product.

[0003] However, current methods of storing and managing precision shoe lasts fall far short of the requirements for precision maintenance. The industry commonly uses a method of stacking them in large crates for storage or transport. This crude storage method easily leads to collisions and friction between precision shoe lasts, inevitably causing scratches, indentations, or wear on the critical working surfaces and clamping grooves.

[0004] Damage to these high-precision reference surfaces will trigger a chain reaction of production problems: First, wear on the working surfaces will cause deviations in the positioning of the shoe last on the tooling, compromising initial positioning accuracy; second, wear on the clamping grooves will directly affect the accuracy and reliability of the robotic arm's gripping. Any minute deviation will be amplified in subsequent processes, ultimately leading to quality defects such as inaccurate marking and poor glue application, severely restricting the efficiency of automated production lines and ensuring product consistency.

[0005] Therefore, there is an urgent need in the field for a specialized device that can provide structured and precise protection for the storage of precision shoe lasts, in order to address the wear and tear risks they face during storage and turnover, and ensure that the accuracy of their key reference surfaces can be maintained over a long period of time. Utility Model Content

[0006] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a precision shoe last storage rack to prevent the critical reference surfaces of precision shoe lasts from being worn during storage and turnover.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a precision shoe last storage rack includes a main frame and a multi-layer storage unit fixed on the main frame. Each layer of the storage unit includes multiple hanging compartments for suspending precision shoe lasts. Each hanging compartment includes a pair of parallel hanging rods. The distance between the pair of hanging rods is adapted to the distance between the clamping slots on both sides of the top of the precision shoe last, so that the precision shoe last can be suspended between the pair of hanging rods through the clamping slots.

[0008] As a limitation of this utility model, the part of the suspension rod that contacts the clamping groove is covered with an anti-wear sleeve.

[0009] As a further limitation of this utility model, the side wall of the anti-wear sleeve has an axial slit.

[0010] As a further limitation of this utility model, the anti-wear sleeve is made of nylon or foam.

[0011] As another limitation of this utility model, the suspended chamber is arranged at an angle and the entrance is at a high position.

[0012] As a further limitation of this utility model, a structural reinforcing rod is connected between each pair of adjacent suspension compartments.

[0013] As a further definition of this utility model, the structural reinforcing rod is an arc-shaped rod connecting the tops of two adjacent suspension rods of the two suspension chambers.

[0014] As a third limitation of this utility model, each layer of the storage unit includes two rows of hanging compartments, the two rows of hanging compartments are arranged back to back, and each row of hanging compartments is fixedly mounted on a connecting rod. The two ends of the connecting rod are fixed to the main frame.

[0015] As a further limitation of this utility model, anti-collision pads are fixedly provided at the position of each of the suspension chambers on the connecting rod to prevent the precision shoe last from directly contacting the connecting rod.

[0016] As another limitation of this utility model, the side plate of the main frame is provided with a label frame, and the bottom is provided with multiple universal wheels with brakes.

[0017] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: (1) By setting up a dedicated hanging compartment, this utility model enables each precision shoe last to be stored independently and in isolation, which completely changes the stacking and throwing method in the prior art. This effectively avoids scratches, wear or deformation of the key reference surfaces (top working surface and clamping groove) caused by collision and friction between shoe lasts, and provides a basic guarantee for maintaining the long-term use accuracy of precision shoe lasts. (2) This utility model avoids direct hard contact between the metal suspension rod and the shoe last clamping groove by fitting an anti-abrasion sleeve on the suspension rod, thereby preventing scratches or wear on the shoe last clamping groove. In addition, the anti-abrasion sleeve adopts an open design, which is convenient for installation and disassembly for replacement; (3) The present invention sets the hanging compartment at an angle and the entrance is at a high position, so that the precision shoe last tends to move towards the bottom of the compartment due to its own gravity after being suspended, forming a self-locking effect, which effectively prevents the precision shoe last from accidentally slipping out of the compartment when it is transported or the equipment is subjected to vibration. (4) The present invention connects an arc-shaped rod between adjacent suspension rods of adjacent suspension compartments, which can significantly enhance the load-bearing capacity of the suspension rod, enabling it to bear the weight of the shoe last for a long time without deformation, thus improving the durability and reliability of the device. (5) The present invention provides anti-collision pads at the bottom of the suspension compartment to prevent the precision shoe last from colliding with the rigid structure such as the connecting rod below during placement or slight shaking, thus providing additional cushioning protection for the precision shoe last; (6) The present invention has multiple casters with braking function at the bottom of the main frame, which makes the entire rack easy to move flexibly in the workshop according to different production rhythms and process requirements. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of a single-row suspended compartment in an embodiment of this utility model; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a side view showing the structural relationship of a single-row suspended compartment in an embodiment of this utility model; Figure 5 This is a schematic diagram of the application structure of an embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of the precision shoe last suspended in the suspension chamber in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the precision shoe last in an embodiment of this utility model; In the diagram: 1. Main frame; 2. Storage unit; 3. Precision shoe last; 101. Base frame; 102. Upright column; 103. Casters; 104. Side panel; 105. Label holder; 106. Crossbar; 201. Suspension housing; 202. Linkage rod; 203. Suspension rod; 204. Anti-wear sleeve; 205. Anti-collision pad; 206. Curved rod; 301. Top working surface; 302. Clamping groove. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0021] This embodiment discloses a precision shoe last storage rack, including a main frame 1 and a multi-layer storage unit 2 fixed on the main frame 1.

[0022] like Figure 1 As shown, the main frame 1 includes a base frame 101 and multiple uprights 102 vertically fixed on both sides of the base frame 101. The bottom of the base frame 101 is provided with multiple casters 103. Side plates 104 are fixed between the uprights 102 on each side, and a crossbar 106 is connected to the top of each upright 102. In this embodiment, the casters 103 are conventional casters with brakes, and one is located at each of the four corners of the bottom of the base frame 101. The side plates 104 are perforated plates, and label frames 105 are fixed on the side plates 104 for inserting item classification labels.

[0023] Storage unit 2 includes multiple hanging compartments 201 for suspending precision shoe lasts 3, such as Figure 1 and Figure 2 As shown, in this embodiment, the storage unit 2 is provided with four layers on the main frame 1, and each layer includes two rows of hanging compartments 201 arranged back to back. Specifically, all the hanging compartments 201 in each row are fixedly mounted on a connecting rod 202, and the two ends of the connecting rod 202 are fixed on the two side columns 102 of the main frame 1, thereby realizing the fixed mounting of the hanging compartments 201 (i.e., the storage unit 2) on the main frame 1.

[0024] Furthermore, such as Figures 2 to 4As shown, each suspension chamber 201 includes a pair of parallel suspension rods 203. One end of each suspension rod 203 is fixed to a connecting rod 202, and the other end extends obliquely upward, thus making the suspension chamber 201 inclined, with the entrance of the suspension chamber 201 at a high position. The distance between the two suspension rods 203 in each suspension chamber 201 matches the distance between the clamping grooves 302 on both sides of the top of the precision shoe last 3, and the diameter of the suspension rod 203 matches the inner diameter of the clamping groove 302, allowing the precision shoe last 3 to be suspended between the two suspension rods 203 in the suspension chamber 201 through the clamping groove 302. (Refer to...) Figure 5 and Figure 6 .

[0025] To prevent the suspension rod 203 from directly contacting the clamping groove 302 of the precision shoe last 3, in this embodiment, the parts of the suspension rod 203 that come into contact with the clamping groove 302 are all fitted with anti-wear sleeves 204. For example... Figure 3 As shown, the anti-wear sleeve 204 has a cylindrical structure with an inner diameter adapted to the outer diameter of the suspension rod 203. The side wall of the anti-wear sleeve 204 has an axial slit to facilitate installation and removal of the anti-wear sleeve 204 from the suspension rod 203. The anti-wear sleeve 204 can be made of nylon or foam (such as PU foam, PE foam, or EVA foam). In this embodiment, the anti-wear sleeve 204 is made of EVA foam.

[0026] To prevent the precision shoe last 3 from directly colliding with the connecting rod 202 when it is inserted into the storage compartment, in this embodiment, anti-collision pads 205 are fixedly installed on the connecting rod 202 at positions facing each suspension compartment 201, as shown in the figure below. Figure 2 and Figure 3 As shown. The anti-collision pad 205 is a cylinder made of EVA foam.

[0027] To improve the structural strength of the suspension chamber 201 and enable it to withstand the weight of the precision shoe last 3 for extended periods without deformation, a structural reinforcing rod is connected between every two adjacent suspension chambers 201 in this embodiment. Specifically, as follows... Figure 2 and Figure 3 As shown, the structural reinforcing rod is an arc-shaped rod 206, which connects the tops of two adjacent suspension rods 203 between two adjacent suspension chambers 201.

[0028] It needs to be further explained that the structure of the precision shoe last 3 in the prior art is as follows: Figure 7 As shown, it has a top working surface 301 for close contact with the tooling surface, and a gripping groove 302 for being grasped by a robotic arm. The gripping groove 302 is an arc-shaped groove, with one on each side of the top of the precision shoe last 3, and the positions are symmetrical.

[0029] like Figure 5 and Figure 6As shown, the precision shoe last 3 can be suspended between two suspension rods 203 through the clamping groove 302, so as to be stored independently and isolated in the suspension compartment 201.

[0030] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision shoe last storage rack, characterized in that: The device includes a main frame and multi-layer storage units fixed on the main frame. Each storage unit includes multiple hanging compartments for suspending precision shoe lasts. Each hanging compartment includes a pair of parallel hanging rods. The distance between the pair of hanging rods is adapted to the distance between the clamping slots on both sides of the top of the precision shoe last, so that the precision shoe last can be suspended between the pair of hanging rods through the clamping slots.

2. The precision shoe last placement rack according to claim 1, characterized in that: The part of the suspension rod that contacts the clamping groove is covered with an anti-wear sleeve.

3. The precision shoe last placement rack according to claim 2, characterized in that: The wear-resistant sleeve has an axial slit on its sidewall.

4. The precision shoe last placement rack according to claim 3, characterized in that: The anti-wear sleeve is made of nylon or foam.

5. The precision shoe last storage rack according to any one of claims 1-4, characterized in that: The suspended compartment is angled, with the entrance positioned at a high level.

6. The precision shoe last placement rack according to claim 5, characterized in that: A structural reinforcing rod connects each pair of adjacent suspension compartments.

7. The precision shoe last placement rack according to claim 6, characterized in that: The structural reinforcing rod is an arc-shaped rod connecting the tops of two adjacent suspension rods of the two suspension chambers.

8. The precision shoe last storage rack according to any one of claims 1-4, 6, and 7, characterized in that: Each storage unit includes two rows of suspended compartments, which are arranged back to back, and each row of suspended compartments is fixedly mounted on a connecting rod. The two ends of the connecting rod are fixed to the main frame.

9. The precision shoe last placement rack according to claim 8, characterized in that: Each connecting rod is fixed with an anti-collision pad at the position of each suspension chamber to prevent the precision shoe last from directly contacting the connecting rod.

10. The precision shoe last storage rack according to any one of claims 1-4, 6, 7, and 9, characterized in that: The main frame has a label frame on its side panel and multiple casters with brakes at the bottom.

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